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Running Tomcat as a Service on 64-Bit Windows

I'm replacing one of our ColdFusion 8 installs with Tomcat 6.0.20 and Open BlueDragon, and this is on a 64-bit Windows 2003 server. Easy enough conceptually, but it turns out running Tomcat as a service on 64-bit Windows has a small trick involved.

A couple of potential solutions are outlined on StackOverflow (and numerous other places), but it still involved a bit of hunting around, so I thought a step-by-step with specific links would be helpful both to others and to myself when I forget how to do this next time. ;-)

  1. Install a 64-bit JDK if you haven't already.
  2. Download and run the Windows Service Installer of Tomcat.
    1. Make sure and point to your 64-bit JVM at the appropriate spot in the install process.
    2. At the end of the install, uncheck the box to start Tomcat. It won't start anyway at this point since the startup script included in the download is 32-bit.
  3. Grab the 64-bit versions of tomcat6.exe and tomcat6w.exe from the SVN repository. Even though it says "amd64" in the URL these files work on Intel chips as well.
  4. Replace the tomcat6.exe and tomcat6w.exe in Tomcat's bin directory with the new 64-bit versions you downloaded.
  5. Start up Tomcat!
That should be all there is to it. The one thing that doesn't work for me is the "Monitor Tomcat" application, but that really isn't a big deal since it doesn't do or tell you anything you can't get from the Services panel. I haven't dug into that at all so if anyone knows why that doesn't run I'd be curious to know.

After this is all installed make sure and go into the Tomcat Configuration app to take advantage of all the RAM you need or want to for your applications.

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